05-02-2012
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello UNIX experts,
I have 124 text files in a directory. I want to extract the 45678th line of all the files sequentialy by file names. The extracted lines should be printed in the output file on seperate lines.
e.g. The input Files are one.txt, two.txt, three.txt, four.txt
The cat of four... (1 Reply)
Discussion started by: yogeshkumkar
1 Replies
2. UNIX for Dummies Questions & Answers
does anyone have an awk one-liner to:
print the first line, the second line, then every Nth line, and the last line of a file.
Thanks,
Kenny. (5 Replies)
Discussion started by: kenneth.mcbride
5 Replies
3. Shell Programming and Scripting
Hi
I have requirement to find nth occurrence in a file and capture data from with in lines (between lines)
Data in File.
<QUOTE>
<SESSION>
<ATTRIBUTE NAME='Parameter Filename' VALUE='file1.parm'/>
<ATTRIBUTE NAME='Service Name' VALUE='None'/>
</SESSION>
<SESSION>
<ATTRIBUTE... (6 Replies)
Discussion started by: tmalik79
6 Replies
4. Shell Programming and Scripting
Hi,
For my reuirement, I have to read a file from the 2nd line till the last line<EOF>.
Say,
I have a file as test.txt, which as a header record in the first line followed by records in rest of the lines.
for i in `cat test.txt`
{
echo $i
}
While doing the above loop, I have read... (5 Replies)
Discussion started by: machomaddy
5 Replies
5. Shell Programming and Scripting
Is there an awk script that can easily perform the following operation?
I have a data file that is in the format of
1944-12,5.6
1945-01,9.8
1945-02,6.7
1945-03,9.3
1945-04,5.9
1945-05,0.7
1945-06,0.0
1945-07,0.0
1945-08,0.0
1945-09,0.0
1945-10,0.2
1945-11,10.5
1945-12,22.3... (3 Replies)
Discussion started by: ncwxpanther
3 Replies
6. UNIX for Dummies Questions & Answers
Hey,
I'm sure this is answered somewhere but my Googling has turned up nothing. I have a file with data in the following format:
<desription of event> at <time and date>The desription of the event is variable length and hence when the list is displayed it is hard to easily see the date (and... (8 Replies)
Discussion started by: RECrerar
8 Replies
7. Shell Programming and Scripting
Bash/Oracle Linux 6.4
A basic requirement.
How can I get nth line of a file printed ? Can I use grep in this case ?
Example:
In the below file, 12th line is "Kernel parameter check passed for rmem_max" . I just want the 12 line to be printed.
# cat sometext.txt
Kernel version check... (2 Replies)
Discussion started by: John K
2 Replies
8. UNIX for Beginners Questions & Answers
Hi All,
I am using UNix Sun OS sun4u sparc SUNW,SPARC-Enterprise
My intention is to insert a line of text after 13th line of every file inside a particular directory.
While trying to do it for a single file , i am using sed
sed '3 i this is the 4th line' filename
sed: command garbled: 3... (5 Replies)
Discussion started by: gotamp
5 Replies
9. AIX
Please help me
print nth line after match
awk or sed one line command. (3 Replies)
Discussion started by: sushma123
3 Replies
10. Shell Programming and Scripting
My file (the output of an experiment) starts off looking like this,
_____________________________________________________________
Subjects incorporated to date: 001
Data file started on machine PKSHS260-05CP
**********************************************************************
Subject 1,... (9 Replies)
Discussion started by: samonl
9 Replies
LEARN ABOUT HPUX
xtappaddworkproc
XtAppAddWorkProc() XtAppAddWorkProc()
XtAppAddWorkProc - register a procedure to be called when the event loop is idle.
Synopsis
XtWorkProcId XtAppAddWorkProc(app_context, proc, client_data)
XtAppContext app_context;
XtWorkProc proc;
XtPointer client_data;
Inputs
app_context
Specifies the application context.
proc Specifies the procedure that is to be called when the application is idle.
client_data
Specifies data to be passed to proc when it is called.
Returns
A handle of type XtWorkProcId that can be passed to XtRemoveWorkProc() to unregister the work procedure.
Description
XtAddWorkProc() registers the procedure proc and the data client_data to be called by XtAppNextEvent() or XtAppProcessEvent() when there
are no pending input events and it would otherwise block. Multiple work procedures can be registered, and the most recently added one is
always the one that is called. However, if a work procedure itself adds another work procedure, the newly added one has lower priority
than the current one.
A work procedure returns a Boolean. If it returns True, it will automatically be unregistered and will not be called again. If it returns
False it will be called the next time the application is idle. See XtWorkProc(2) for more information.
Usage
XtAppAddWorkProc() implements a limited form of background processing. Most applications spend most of their time waiting for input; to do
useful work during this idle time, you can register a work procedure that will run when the application is idle.
A work procedure must return quickly or the application will not be able to promptly respond to user events. If a large task needs to be
done in the background, the work procedure should periodically save its state and return False. Work procedures should not be used to do
frivolous work in the background. In a multi-tasking system, an idle application should generally actually be idle, and not steal CPU time
from other processes.
A work procedure can be explicitly removed by calling XtRemoveWorkProc() with the XtWorkProcId returned by this function.
Structures
The XtWorkProcId type is defined as follows:
typedef unsigned long XtWorkProcId;
See Also
XtAppNextEvent(1), XtAppProcessEvent(1), XtRemoveWorkProc(1),
XtWorkProc(2).
Xt - Event Handling XtAppAddWorkProc()